66
RS-232↔IEEE 488 INTERFACE CONVERTER
ACG = Addressed Command Group TAG = Talk Address Group
UCG = Universal Command Group SCG = Secondary Command Group
LAG = Listen Address Group
NUL
$00 0
SOH
$01
GTL
1
STX
$02 2
ETX
$03 3
EOT
$04
SDC
4
ENQ
$05
PPC
5
ACK
$06 6
BEL
$07 7
BS
$08
GET
8
HT
$09
TCT
9
LF
$0A 10
VT
$0B 11
FF
$0C 12
CR
$0D 13
SO
$0E 14
SI
$0F 15
DLE
$10 16
SP
$20
00
32
0
$30
16
48
@
$40
00
64
P
$50
16
80
`
$60
SCG
96
p
$70
SCG
112
DC1
$11
LLO
17
!
$21
01
33
1
$31
17
49
A
$41
01
65
Q
$51
17
81
a
$61
SCG
97
q
$71
SCG
113
DC2
$12 18
"
$22
02
34
2
$32
18
50
B
$42
02
66
R
$52
18
82
b
$62
SCG
98
r
$72
SCG
114
DC3
$13 19
#
$23
03
35
3
$33
19
51
C
$43
03
67
S
$53
19
83
c
$63
SCG
99
s
$73
SCG
115
DC4
$14
DCL
20
$
$24
04
36
4
$34
20
52
D
$44
04
68
T
$54
20
84
d
$64
SCG
100
t
$74
SCG
116
NAK
$15
PPU
21
%
$25
05
37
5
$35
21
53
E
$45
05
69
U
$55
21
85
e
$65
SCG
101
u
$75
SCG
117
SYN
$16 22
&
$26
06
38
6
$36
22
54
F
$46
06
70
V
$56
22
86
f
$66
SCG
102
v
$76
SCG
118
ETB
$17 23
'
$27
07
39
7
$37
23
55
G
$47
07
71
W
$57
23
87
g
$67
SCG
103
w
$77
SCG
119
CAN
$18
SPE
24
(
$28
08
40
8
$38
24
56
H
$48
08
72
X
$58
24
88
h
$68
SCG
104
x
$78
SCG
120
EM
$19
SPD
25
)
$29
09
41
9
$39
25
57
I
$49
09
73
Y
$59
25
89
i
$69
SCG
105
y
$79
SCG
121
SUB
$1A 26
*
$2A
10
42
:
$3A
26
58
J
$4A
10
74
Z
$5A
26
90
j
$6A
SCG
106
z
$7A
SCG
122
ESC
$1B 27
+
$2B
11
43
;
$3B
27
59
K
$4B
11
75
[
$5B
27
91
k
$6B
SCG
107
{
$7B
SCG
123
FS
$1C 28
,
$2C
12
44
<
$3C
28
60
L
$4C
12
76
\
$5C
28
92
l
$6C
SCG
108
|
$7C
SCG
124
GS
$1D 29
-
$2D
13
45
=
$3D
29
61
M
$4D
13
77
]
$5D
29
93
m
$6D
SCG
109
}
$7D
SCG
125
RS
$1E 30
.
$2E
14
46
>
$3E
30
62
N
$4E
14
78
^
$5E
30
94
n
$6E
SCG
110
~
$7E
SCG
126
US
$1F 31
/
$2F
15
47
?
$3F
UNL
63
O
$4F
15
79
_
$5F
UNT
95
o
$6F
SCG
111
DEL
$7F
SCG
127
Appendix B. Character Codes and IEEEMultiline Messages